AIRAID Filter Company has leveled the power playing field between the 7.3L and the newer, more powerful 6.0L with the development of an all-new Cold Air Dam Intake System for the 7.3 liter that allows the engine to breathe deeper, resulting in big horsepower and torque gains. This Power Stroke system, p/n 400-222 is available for 1999-2003 7.3-liter Power Stroke equipped Ford F-250s, F-350s and Excursions replaces the restrictive factory air box setup with an AIRAID Cold Air Dam which also incorporates a heavy-duty battery tray, complete with urethane battery pad. Since the key to quicker throttle response and improved horsepower and torque is air flow, at the heart of the new AIRAID Intake System is a huge AIRAID Premium SynthaFlow series filter and specially shaped intake tube that feeds the Power Stroke turbo inlet. On the dyno, the new AIRAID Cold Air Dam Intake System for the 7.3-liter generated an additional 27 horsepower and a whopping 55 lb/ft of torque to the rear wheels at a real-world 1900 rpm, about where most diesel driving is conducted. The system is a must for Power Stroke owners considering other upgrades such as a programmer or chip, and aftermarket exhaust system. Application: 2000-2003 Excursion 7.3L Power Stroke Diesel 1999-2003 F-250 / F-350 Super Duty 7.3L Power Stroke Diesel